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008 160926s2016 ua dh f m 000 0 eng d
040 _aEG-GiCUC
_beng
_cEG-GiCUC
041 0 _aeng
049 _aDeposite
097 _aPh.D
099 _aCai01.10.11.Ph.D.2016.Al.S
100 0 _aAlzahraa Muhammad Abdelrasoul Abdelatty
245 1 0 _aShort term dietary modifications alter mammary lipogenic gene expression in mid lactating dairy cow using novel non-invasive rna extraction technique /
_cAlzahraa Muhammad Abdelrasoul Abdelatty ; Supervised Fathy Farouk Mohamed , Richard Arthur Erdman , Mohamed Ahmed Tony
246 1 5 _aدراسة تأثير التغيير في التغذية قصير المدي علي تعبير جينات دهن اللبن بإستخلاص المادة الوراثية بتقنية حديثة
260 _aCairo :
_bAlzahraa Muhammad Abdelrasoul Abdelatty ,
_c2016
300 _a125 P. :
_bcharts , facsimiles ;
_c25cm
502 _aThesis (Ph.D.) - Cairo University - Faculty of Veterinary Medicine - Department of Nutrition
520 _aMilk fat is the most variable component of milk, it is easily changed by nutritional and environmental factors rendering it a central point of interest for the daily market and scientists. Dietary manipulation can have a profound influence on milk fat synthesis and its fatty acid profile. However, our basic understanding of how dietary manipulations regulates mammary lipogenesis is limited by the use of mammary biopsy to obtain representative tissue sample for gene expression analysis, as repeated biopsies over short time interval from the same animal is not possible. Therefore, the general objective of this dissertation was to measure the sequential changes in milk fat concentration, milk fatty acid profile and mammary lipogenic gene expression that occur during the transition from normal to dietary induced either elevated or depressed milk fat concentration, using new non-invasive alternative technique by extracting RNA from cytosolic crest trapped in large fat globules. Two experiments were conducted: 1) feed restriction that induce negative energy balance, body fat mobilization, and elevated milk fat concentration, 2) dietary induced milk fat depression by the use of dietary CLA that resulted in depression in milk fat concentration.
530 _aIssued also as CD
653 4 _aCLA
653 4 _aCytosolic crescent
653 4 _aDairy cow
700 0 _aFathy Farouk Mohamed ,
_eSupervisor
700 0 _aMohamed Ahmed Tony ,
_eSupervisor
700 0 _aRichard Arthur Erdman ,
_eSupervisor
905 _aNazla
_eRevisor
905 _aSoheir
_eCataloger
942 _2ddc
_cTH
999 _c57859
_d57859